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How do I get the most recent block in Web3? If this can be a query you have got been asking your self, then you might be precisely the place you should be! This Web3 tutorial will present you methods to get the present block by timestamp utilizing Moralis. Actually, because of Moralis’ EVM API, all it takes is a single name to the ”get_date_to_block” endpoint whereas passing a date and chain as parameters:
from moralis import evm_api
api_key = “YOUR_API_KEY”
params = {
“date”: “”,
“chain”: “eth”,
}
outcome = evm_api.block.get_date_to_block(
api_key=api_key,
params=params,
)
print(outcome)
When working with the primary Web3 infrastructure supplier, it doesn’t need to be more difficult to get the present block primarily based on a timestamp than the above! If you wish to study extra in regards to the ”get_date_to_block” endpoint, try Moralis’ get block by date Web3 documentation.
For a extra detailed breakdown of methods to implement this performance into an app, learn on as we present you ways to take action via an Ethereum Python implementation. What’s extra, bear in mind to register with Moralis in case you plan to hitch us all through this tutorial. Signing up is free, and also you want an account to observe alongside!
Overview
In immediately’s Web3 tutorial, we’ll illustrate methods to get any block by constructing a Python utility in three steps:
Utilizing a Web3 get block operate – Moralis’ ”get_date_to_block” endpointSetting up the Web3 get block by timestamp backendBuilding the Web3 get block frontend
By the top of this tutorial, you’ll have your individual Python app finalized, enabling you to repeatedly get blocks primarily based on timestamps. If this sounds attention-grabbing and also you need to get going instantly, click on right here to leap straight into the Web3 get block function tutorial!
When constructing decentralized purposes (dapps), platforms, and different Web3 tasks, you’ll rapidly notice that you just want entry to on-chain information. For the reason that Web3 business is blockchain-based, you possibly can think about that one piece of such info is block numbers. Getting this information might help you to, as an example, entry transactional information at given occasions. For that reason, this Web3 tutorial will present you methods to get a block by a timestamp utilizing Moralis!
To make this course of as accessible as doable, we might be using Moralis’ EVM API and the ”get_date_to_block” endpoint. That is certainly one of many Web3 APIs provided by Moralis, and if you’re severe about stepping into the area, take into account trying out further Moralis instruments. As an illustration, an awesome instance is the Web3 Streams API, permitting you to stream on-chain information into your tasks by way of Moralis webhooks!
Right here on the weblog, you may also discover matters past getting blocks primarily based on timestamps. As an illustration, examine BNB testnet taps or try our information on Web3.py vs Web3.js!
Now, earlier than you proceed, bear in mind to enroll with Moralis, as you should have an lively account to observe alongside. Setting one up is free and solely takes just a few seconds!
Web3 Get Block Function Tutorial
Within the subsequent sections, we’ll kickstart this Web3 tutorial illustrating methods to get a block quantity from any chain. Extra particularly, we’ll present you methods to create a Python utility enabling you to get the present block primarily based on a timestamp!
For example what you may be working in the direction of, you could find a print display screen of the app’s touchdown web page down under:
The app options three core parts: two enter fields and a ”Get Block” button. To make use of the app, all you should do is choose a time, date, and chain, adopted by hitting the button. In return, it is best to obtain a response just like the one proven under:
To have the ability to seamlessly get the present Web3 block, we might be utilizing Moralis’ EVM API and the ”get_date_to_block” endpoint to create this app. If this sounds thrilling, be part of us as we cowl the entire course of from begin to end!
When you favor watching movies to study, you may also try the clip under from Moralis’ YouTube channel. Within the video, certainly one of our Web3 builders supplies a complete walkthrough of every step:
Now, let’s say you might be uncertain what a Web3 get block function is. If that’s the case, you possibly can learn extra about Moralis’ ”get_date_to_block” endpoint under the third step. In any other case, be part of us as we begin by protecting the required stipulations within the following sub-section!
Conditions
Earlier than diving into this Web3 tutorial on methods to get the present block by timestamp, you need to have the next prepared:
Set up Moralis – Open a brand new terminal and set up Moralis by working the next command:pip set up moralis Set up Django and the Relaxation Framework – Run the terminal inputs under to put in Django and Relaxation: pip set up djangopip set up djangorestframework django-cors-headers
Step 1: Utilizing a Web3 Get Block Perform – Moralis’ ”get_date_to_block” Endpoint
On this preliminary step, we’ll present a fast demo of Moralis’ ”get_date_to_block” endpoint. This can present you methods to seamlessly use a Web3 operate to get a block by timestamp!
To get going, begin by organising a brand new Django Python mission. Subsequent, create a ”companies.py” file and add the code under:
from moralis import evm_api
api_key = “YOUR_API_KEY”
params = {
“date”: “”,
“chain”: “eth”,
}
outcome = evm_api.block.get_date_to_block(
api_key=api_key,
params=params,
)
print(outcome)
From there, you should configure the code by changing ”YOUR_API_KEY” together with your Moralis API key:
You’ll be able to fetch your key by logging in to the Moralis admin panel and navigating to the ”Web3 APIs” tab:
Copy your key and enter it into the code. Lastly, you additionally want so as to add a date to the ”date” parameter. This have to be a “Unix date” in milliseconds or a date string. As an illustration, it may possibly look one thing like this: ”1667823435”.
As soon as you might be executed configuring the code, all that continues to be is working the script. To take action, open a brand new terminal, enter ”python companies.py”, and hit enter. This could return a response just like the one proven under. Amongst different issues, the response incorporates the variety of the block closest to the timestamp, which is the second parameter:
{
“date”: “2020-01-01T00:00:00+00:00”,
“block”: 9193266,
“timestamp”: 1577836811,
“block_timestamp”: “2022-01-03T22:59:39.000Z”,
“hash”: “0x9b559aef7ea858608c2e554246fe4a24287e7aeeb976848df2b9a2531f4b9171”,
“parent_hash”: “0x011d1fc45839de975cc55d758943f9f1d204f80a90eb631f3bf064b80d53e045”
}
That’s it! Congratulations, you now know to make use of a Web3 operate to get a block by timestamp!
Within the remaining two steps, we’ll present you methods to implement this performance into an utility. If this sounds attention-grabbing, be part of us within the subsequent part as we cowl the backend code!
Step 2: Setting Up the Web3 Get Block By Timestamp Backend
To create the Web3 app used to get a block by timestamp, we might be utilizing an already-developed Python utility template. So, the very first thing you should do is go to the GitHub repository down under and clone the mission:
Full Web3 Get Block App Documentation – https://github.com/MoralisWeb3/youtube-tutorials/tree/most important/get-block-by-date
With a replica of the mission in your native listing, allow us to break down the backend code! First, we will go to ”companies.py” to see how the code differs from the preliminary step:
from moralis import evm_api
from dotenv import load_dotenv
import os
load_dotenv()
api_key = os.getenv(“MORALIS_API_KEY”)
def get_block_by_date(date, chain):
params = {
“date”: date,
“chain”: chain,
}
outcome = evm_api.block.get_date_to_block(
api_key=api_key,
params=params,
)
return outcome
The code in ”companies.py” remains to be answerable for calling Moralis’ ”get_date_to_block” endpoint. Nonetheless, we modify it by defining the ”get_block_by_date()” operate, making the code extra dynamic.
The ”get_block_by_date()” operate takes two variables as arguments: ”date” and ”chain”. As such, we will implement logic enabling app customers to specify each these parameters.
We additionally take away the API key from this file, as displaying this worth is a safety danger. As such, you should arrange a ”.env” file in your listing and create a brand new surroundings variable:
export MORALIS_API_KEY = ”REPLACE_ME”
Within the snippet above, Don’t forget to switch ”REPLACE_ME” together with your precise key.
With the ”companies.py” script prepared, we additionally be certain so as to add it to ”views.py”:
Lastly, from there, we open the ”urls.py” file and at last add a brand new path:
However, that covers the important components of the backend code! Allow us to transfer on to the third step of this Web3 get block tutorial and look nearer on the frontend!
Step 3: Constructing the Web3 Get Block Frontend
The very first thing we do is open the ”package deal.json” file, the place we be certain so as to add ”proxy” and ”axios”:
Subsequent, allow us to study the code in ”App.js”. Right here, the central operate is ”refreshBlockByDate()”:
const refreshBlockByDate = async () => {
await axios
.get(`/get_block?chain=${params.chain}&date=${date}`)
.then((res) => {
setBlockByDate(res.information);
})
.catch((err) => console.log(err));
};
First, we use “axios” to connect with the backend, enabling us to name the ”get_block” endpoint whereas passing the chain and date as parameters. These two variables are fetched from the app’s UI, permitting customers to pick out a series and date. From there, the rest of the code is answerable for calculating the Unix time, rendering the response and presenting it to the customers, and so forth.
Lastly, earlier than launching and testing your Web3 get block app, you should open a brand new terminal, ”cd” into the frontend folder, and set up the “axios” dependencies with the next command:
npm axios
Congratulations! You have got now created a Web3 Python utility that may get a block by timestamp!
When you at any level throughout this Web3 get block tutorial skilled any bother, please try the video in the beginning of the article, as this may reply any of your questions. You can even try Moralis’ get block by date Web3 documentation, explaining the ”get_date_to_block” endpoint in additional element!
What’s a Web3 Get Block Function?
As we briefly mentioned within the introduction, you typically want on-chain information when creating dapps and different tasks. One such piece of knowledge is block numbers, which may be advantageous in a number of methods. As an illustration, block numbers might help you get transaction information at particular cut-off dates.
Nonetheless, querying the block quantity at a time limit is a difficult activity, which is why builders profit from “Web3 get block” options. A Web3 get block function might help you to simply fetch any block primarily based on a timestamp, and the perfect different is Moralis’ ”get_date_to_block” endpoint.
When working with Moralis, you solely want a single API name to the ”get_date_to_block” endpoint. By visiting the official get block by date Web3 documentation, you possibly can strive it out your self instantly within the browser, and it appears to be like like this:
All you should do is enter a series and a date:
From there, you possibly can click on on the ”Strive It” button and obtain a response in return:
When you favored this Web3 get block tutorial and what to take a look at related content material, we now have a few articles only for you. Discover ways to get Ethereum transaction particulars, or learn our ENS resolver tutorial! Additionally, discover methods to implement Supabase authentication or learn to use the perfect Polygon Mumbai faucet to execute check transactions earlier than launching on the mainnet!
Abstract – Web3 Get Block Function
How do you get the most recent block on Ethereum? The reply to this query is Moralis’ EVM API and the ”get_date_to_block” endpoint! Thanks to those improvement sources, you possibly can create a Web3 Python utility permitting you to get any block in three easy steps:
Utilizing a Web3 get block operate – Moralis’ ”get_date_to_block” endpointSetting up the Web3 get block by timestamp backendBuilding the Web3 get block frontend
On this tutorial, we coated the steps above. Consequently, if in case you have adopted alongside this far, you now know methods to get any block by a timestamp and implement this performance right into a Web3 app. From right here, now you can use your newly acquired information to implement related performance into any future mission!
When you loved this Web3 tutorial, try different excellent guides right here on Moralis’ Web3 weblog. As an illustration, take into account studying our NodeJS Telegram bot tutorial or our glorious information answering the query, ”what’s a Solana pockets?”. Moreover, if you’re new to the business and need to study extra in regards to the underlying know-how, the next is the information for you: ”What’s Web3 know-how?”.
Additionally, take into account enrolling in Moralis Academy, as that is one of the simplest ways to turn out to be a more adept Web3 developer. The academy provides glorious blockchain programs on all ranges. As such, it doesn’t matter if you’re new to the area or have prior expertise; Moralis Academy has you coated. As an illustration, try the newbie course on Ethereum fundamentals to kickstart your journey!
Lastly, earlier than concluding this text, if you’re severe about turning into a blockchain developer, join with Moralis now. With an account, you possibly can leverage the total energy of Web3 know-how to construct smarter and quicker!
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